[PATCH v5 0/4] docs: update email credential helpers and improve formatting

Hi all,

This patch series included three patches:

1. The first patch adds a link to the `git-credential-yahoo` helper for
   Yahoo accounts and links Google's `sendgmail` tool as an alternative
   method for sending emails through Gmail.

2. The second patch improves the formatting of the `git-send-email`
   documentation, making it more readable and consistent.

3. The third patch removed the email credential helper links from the
   `gitcredentials` page. The links are still available in the
   `git-send-email` documentation, which is the right place for them.

Detailed explanation of the changes has been done in individual patch.

v2: Removed instructions for Yahoo SMTP server since I've realised that
    Yahoo *was* a popular email service. Also, the instructions were
    just making the docs more crowded. I've also added a link to
    Google's `sendgmail` tool in the first patch. The second patch has been
    added to address the issues that came up here:
    https://github.com/git/git-scm.com/pull/2005

v3: Added a patch to improve the formatting of the `git-send-email`
    documentation.

v4: Added cpan links of the perl modules requires for `git-send-email`
    to work.

v5: Added a patch to make the purpose of using app password for Gmail
    more clear in `send-email` documentation.

Aditya Garg (4):
  docs: add credential helper for yahoo and link Google's sendgmail tool
  docs: improve formatting in git-send-email documentation
  docs: remove credential helper links for emails from gitcredentials
  docs: make the purpose of using app password for Gmail more clear in
    send-email

 Documentation/config/sendemail.adoc |   8 +-
 Documentation/git-send-email.adoc   | 194 +++++++++++++++-------------
 Documentation/gitcredentials.adoc   |   4 -
 3 files changed, 109 insertions(+), 97 deletions(-)

Range-diff: -: ---------- > 1: 2c47cc5396 docs: add credential helper for yahoo and link Google's sendgmail tool -: ---------- > 2: bc1d0471ca docs: improve formatting in git-send-email documentation -: ---------- > 3: b9e41e2492 docs: remove credential helper links for emails from gitcredentials -: ---------- > 4: a6ad7ac810 docs: make the purpose of using app password for Gmail more clear in send-email